Effects of Additives on the DMMP Sensing Behavior of SnO<sub>2</sub>Nanoparticles Synthesized by Hydrothermal Method

Kim, Hong Chan; Hong, Seong Hyeon; Kim, Sun Jung; Lee, Jong Heun

doi:10.5369/jsst.2011.20.5.294

Cited by 10 publications

(1 citation statement)

References 24 publications

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“…Further studies, aimed at improving the dynamic parameters of SnO 2 sensors during DMMP detection are described in [ 58 ]. The authors of the cited paper manufactured sensors with thick polycrystalline films made of undoped and doped SnO 2 nanoparticles.…”

Section: Mos Sensorsmentioning

confidence: 99%

Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants

Witkiewicz

Jasek

Grabka

2023

Sensors

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On-site detection of chemical warfare agents (CWAs) can be performed by various analytical techniques. Devices using well-established techniques such as ion mobility spectrometry, flame photometry, infrared and Raman spectroscopy or mass spectrometry (usually combined with gas chromatography) are quite complex and expensive to purchase and operate. For this reason, other solutions based on analytical techniques well suited to portable devices are still being sought. Analyzers based on simple semiconductor sensors may be a potential alternative to the currently used CWA field detectors. In sensors of this type, the conductivity of the semiconductor layer changes upon interaction with the analyte. Metal oxides (both in the form of polycrystalline powders and various nanostructures), organic semiconductors, carbon nanostructures, silicon and various composites that are a combination of these materials are used as a semiconductor material. The selectivity of a single oxide sensor can be adjusted to specific analytes within certain limits by using the appropriate semiconductor material and sensitizers. This review presents the current state of knowledge and achievements in the field of semiconductor sensors for CWA detection. The article describes the principles of operation of semiconductor sensors, discusses individual solutions used for CWA detection present in the scientific literature and makes a critical comparison of them. The prospects for the development and practical application of this analytical technique in CWA field analysis are also discussed.

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Section: Mos Sensorsmentioning

confidence: 99%

Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants

Witkiewicz

Jasek

Grabka

2023

Sensors

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Metal Oxide Nanosystems As Chemoresistive Gas Sensors for Chemical Warfare Agents: A Focused Review

Barreca

Maccato

Gasparotto

2022

Adv Materials Inter

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The early and efficient detection of chemical warfare agents (CWAs), hazardous compounds resulting in fatal and irreversible health damages, is an issue of primary importance for security safeguard. Despite the efforts undertaken to date, the quest of lower detection limits, higher selectivity/stability, and faster recognition still represents a main bottleneck to effectively counteract such dreadful threats. This review aims at providing a survey on the developments undertaken in chemoresistive gas sensors based on metal oxide nanosystems for CWA recognition. The sensing mechanisms proposed in the literature, as well as the main reasons underlying the performance enhancement for functionalized/composite systems, are reviewed and discussed. The work summarizes key results achieved so far, and attempts to provide guidelines to overcome the main open problems. Efforts are devoted to delivering information on material properties/performance interplay, highlighting challenges in their fabrication and functional characterization. In fact, despite the advances made, a rational design and understanding of interfacial properties, as well as a perfect control over system growth, mandatory for commercial applications, are still missing. At the conclusion, a brief outlook on development prospects for future advancements is presented, endeavoring to provide a vision on the next necessary steps for an eventual technological implementation.

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Adsorptive stripping voltammetric sensor based on Cd zeolitic imidazole framework-67 for electrochemical detection of sarin simulant

Elfiky,

Beltagi,

Abuzalat

2024

Microchim Acta

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A selective and reliable modified glassy carbon sensor, based on a 1.0% Cd zeolitic imidazole framework-67 modified glassy carbon sensor (GCS2), has been developed for ultrasensitive detection of dimethyl methyl phosphonate (DMMP) in human biological fluid. The synthesis of porous nanoparticles of Cd zeolitic imidazole framework-67 (Cd ZIF-67) was carried out via the hydrothermal method. The resulting Cd ZIF-67 powder emerges with good crystallinity, a rhombic dodecahedral morphology with particle size in the range 300 ~ 500 nm, and a specific surface area of 1780 m2·g−1. Furthermore, the fabricated sensor exhibited superior performance in the detection of DMMP with two linearity ranges of 0.02–2.0 nM and 2.0–9.0 nM and a limit of detection (LOD) of 0.06 pM. The fabricated sensor exhibited good reliability, long-term stability, and repeatability, which are favourable attributes for electroanalytical detection. In addition, the fabricated sensor displayed superior performance without significant interference during the assay of DMMP in a biological fluid (human serum sample) within two linearity ranges of 0.1–1.0 nM and 1.0–6.0 nM and a LOD of 0.03 nM. Graphical Abstract

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Effects of Additives on the DMMP Sensing Behavior of SnO₂Nanoparticles Synthesized by Hydrothermal Method

Cited by 10 publications

References 24 publications

Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants

Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants

Metal Oxide Nanosystems As Chemoresistive Gas Sensors for Chemical Warfare Agents: A Focused Review

Adsorptive stripping voltammetric sensor based on Cd zeolitic imidazole framework-67 for electrochemical detection of sarin simulant

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Effects of Additives on the DMMP Sensing Behavior of SnO2Nanoparticles Synthesized by Hydrothermal Method

Cited by 10 publications

References 24 publications

Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants

Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants

Metal Oxide Nanosystems As Chemoresistive Gas Sensors for Chemical Warfare Agents: A Focused Review

Adsorptive stripping voltammetric sensor based on Cd zeolitic imidazole framework-67 for electrochemical detection of sarin simulant

Contact Info

Product

Resources

About

Effects of Additives on the DMMP Sensing Behavior of SnO₂Nanoparticles Synthesized by Hydrothermal Method